CN115432883A - Rural distributed intelligent domestic sewage treatment method and pretreatment device - Google Patents
Rural distributed intelligent domestic sewage treatment method and pretreatment device Download PDFInfo
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- CN115432883A CN115432883A CN202210939056.8A CN202210939056A CN115432883A CN 115432883 A CN115432883 A CN 115432883A CN 202210939056 A CN202210939056 A CN 202210939056A CN 115432883 A CN115432883 A CN 115432883A
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- 239000010865 sewage Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002351 wastewater Substances 0.000 claims abstract description 92
- 238000004140 cleaning Methods 0.000 claims abstract description 47
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 80
- 239000010802 sludge Substances 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010840 domestic wastewater Substances 0.000 claims description 3
- 210000003608 fece Anatomy 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000011045 prefiltration Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000009991 scouring Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/643—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a combination of movements with respect to the filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to a rural distributed intelligent domestic sewage treatment method and a pretreatment device. According to the invention, the domestic cleaning wastewater can be injected into the box body through the filtering module of the pretreatment device, the baffle can block the wastewater, so that the wastewater can be firstly stored in the box body for a period of time, solid impurities in the wastewater can be precipitated to the bottom of the box body, then the baffle can be lowered, the wastewater can slowly flow out of the box body through the filter screen, the wastewater is prevented from directly scouring the filter screen, the solid impurities are not easy to block the filter screen, the wastewater is convenient to filter, and the floating block can float on the water surface, so that the floating block can pull the baffle through the pull wire, the baffle can slowly descend along with the water surface of the wastewater through the floating block, so that the wastewater can slowly pass through the top of the baffle to be discharged, and the solid impurities at the bottom of the box body are prevented from being greatly disturbed when the wastewater is discharged.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a rural distributed intelligent domestic sewage treatment method and a pretreatment device.
Background
Domestic sewage is the exhaust waste water among the villager daily life, the pollutant that domestic sewage contains is organic matter and a large amount of pathogenic microorganism etc. mainly, the organic matter that exists in domestic sewage is extremely unstable, easy corruption and produce the stench, therefore, domestic sewage must handle before discharging, among the distributed intelligent domestic sewage treatment process in current rural area, when handling domestic cleaning waste water, it filters it through the filter screen directly usually, waste water will directly strike the filter screen, lead to the solid impurity in the waste water to glue on the filter screen easily like this, after using for a long time, solid impurity blocks up the filter screen easily, it is comparatively inconvenient to use.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a rural distributed intelligent domestic sewage treatment method and a pretreatment device.
The purpose of the invention can be realized by the following technical scheme:
a rural distributed intelligent domestic sewage treatment method comprises the treatment steps of pre-filtration, solid decomposition, wastewater decomposition, secondary filtration and sewage discharge, and comprises the following specific steps;
(1) Pretreatment: the domestic cleaning wastewater is subjected to preliminary filtration through a pretreatment device, and liquid and solid impurities in the domestic cleaning wastewater are separated;
(2) And (3) solid decomposition: decomposing organic matters of the domestic liquid dung and the solid impurities by microorganisms, and filtering the domestic wastewater and the solid impurities by a grid plate;
(3) Decomposing wastewater: decomposing the wastewater filtered in the step (2) by microorganisms to reduce the content of nitrogen and phosphorus in the wastewater;
(4) Secondary filtration: the wastewater after the filtering and decomposing in the steps (1) and (3) passes through a ceramsite filter material and the like for two times;
(5) And (3) blowdown: and discharging the wastewater after the secondary filtration into a sewage pipeline.
The method is further characterized in that: and (4) feeding the sludge generated by filtering in the step (3) into a sludge bin for collection and storage, and performing barrel unified treatment on the sludge in the sludge bin in the later period.
The utility model provides a preprocessing device, includes the filter module, filter module fixedly connected with clearance module, the filter module includes the box, box top surface intercommunication has the feed liquor pipe, the fixed frame of box side fixedly connected with, fixed frame medial surface is located the fixedly connected with filter screen of box one side, fixed frame medial surface bottom sliding connection has the backup pad with clearance module fixed connection, one side sliding connection that fixed frame medial surface deviates from the box has the baffle, baffle side top fixedly connected with U type frame, the equal fixedly connected with fixed block in two sides of U type frame, the supporting mechanism of box side fixedly connected with and U type frame contact, and supporting mechanism and fixed block contact, two dogs of fixed block fixedly connected with are corresponded to fixed frame side, can be with domestic cleaning wastewater through the feed liquor pipe pour into the box in, and the baffle can block waste water, and the solid impurity in the waste water can deposit to the bottom half like this, and waste water holds full back in the box, can fall down the baffle through supporting mechanism, and waste water can pass the filter screen and slowly flow out the box through the baffle top, avoids waste water directly to erode the filter screen, and the impurity is difficult to be blocked, is convenient for filtering of waste water.
Further, the method comprises the following steps: the supporting mechanism comprises two fixed shells, the side faces of the fixed shells are fixedly connected with the side faces of the box body, the two fixed shells are in contact with the side faces of the U-shaped frame in opposite directions, the inner side faces of the fixed shells are in sliding connection with adjacent fixed blocks, the top and the bottom of the inner side faces of the fixed shells are rotatably connected with rotating blocks, two rotating blocks are in side transmission connection with a transmission belt, the top of one side face of the transmission belt is fixedly connected with a supporting block at the bottom of the other side face, the top of the supporting block at the top of one side face of the transmission belt is in contact with the bottom of the adjacent fixed block, two fixed shells are rotatably connected with transmission rods in opposite directions, the two ends of each transmission rod are fixedly connected with the side faces of the adjacent rotating blocks, one fixed shell deviates from the side face of the transmission rod and is fixedly connected with a driving box, the first motor is fixedly connected with the inner side face of the driving box, the first motor is in transmission connection with the adjacent rotating blocks, the two rotating blocks in the same fixed shell can be synchronously rotated through the transmission rods, the first motor can drive the transmission belt to enable the top supporting block to upwards rotate to be separated from the supporting block, and the baffle can be lowered.
The method is further characterized in that: two the relative one side fixedly connected with U template that deviates from the box of canned motor casing, water drainage tank has been seted up to U template side bottom, U template medial surface corresponds the arc template of water drainage tank fixedly connected with and baffle bottom contact, and waste water can fall on the arc template behind U type frame, then passes water drainage tank and discharges, and U template and arc template can block waste water, avoid waste water to splash.
Further, the method comprises the following steps: the utility model discloses a sewage treatment device, including box medial surface fixedly connected with and backup pad top surface contact's fixed pipe, fixed pipe side sliding connection has the kicking block, fixed intraduct is provided with acts as go-between, act as go-between one end from fixed pipe side bottom wear out and with kicking block bottom surface fixed connection, and the other end of acting as go-between wears out from fixed nose portion, fixed frame top surface fixedly connected with gyro wheel seat, the other end of acting as go-between walks around gyro wheel seat top and passes fixed frame top, and the other end and baffle top surface fixed connection of acting as go-between, when discharging waste water, the kicking block can waft on the surface of water, like this after baffle removes one section distance downwards, the kicking block can hold the baffle through the acting as go-between, and the baffle can follow the waste water surface of water through the kicking block and slowly descend to discharge waste water, when avoiding discharging waste water, cause great disturbance to the solid impurity of bottom half, make impurity glue on the filter screen.
Further, the method comprises the following steps: the cleaning module comprises a supporting shell, the side surface of the top of the supporting shell is fixedly connected with the bottom of the side surface of a box body, a power box is fixedly connected to the inner bottom surface of the supporting shell, a motor II is fixedly connected to the inner bottom surface of the power box, a connecting rod which is connected with the inner side surface of the power box in a rotating mode is connected in a transmission mode through a motor II output end, a sleeve rod is fixedly connected to the top of the inner side surface of the power box in a rotating mode, a lifting screw rod is connected to the inner side surface of the sleeve rod in a rotating mode, a lifting rod which is connected with the lifting screw rod in a rotating mode is connected to the inner side surface of the sleeve rod in a sliding mode, a first spring which is connected with the inner side surface of the sleeve rod in a rotating mode is connected to the inner side surface of the sleeve rod in a sliding mode, a third bevel gear is fixedly connected to the side surface of the lifting screw rod and the bottom end of the lifting screw rod, two bevel gears are in a three-meshed transmission mode, the connecting rod can drive the connecting rod to rotate through the third bevel gear, the lifting screw rod can drive the lifting screw rod to rotate downwards, the lifting screw rod and the lifting screw rod can move downwards after the lifting screw rod is contacted with the lifting screw rod, and the lifting screw rod can move upwards when the lifting screw rod is contacted with the lifting screw rod.
Further, the method comprises the following steps: the two inner side surfaces of the support shell are fixedly connected with connecting boxes, the side surface of the power box is fixedly connected with a first baffle shell fixedly connected with the side surface of one connecting box, the side surface of the two connecting boxes, which deviates from the first baffle shell, is fixedly connected with a second baffle shell, the opposite surface of the two connecting boxes is provided with a cleaning rod, the side surface of the cleaning rod is fixedly connected with a plurality of cleaning hairs, the two ends of the cleaning rod are fixedly connected with rotating rods in contact with the inner side surfaces of the adjacent connecting boxes, the inner side surface of each connecting box is slidably connected with a sliding block rotatably connected with the adjacent rotating rod, the inner side surface of each connecting box is rotatably connected with a reciprocating screw rod in contact with the sliding block, the inner part of each sliding block is rotatably connected with a guide piece in contact with a spiral rail on the reciprocating screw rod, one end of the reciprocating screw rod in one connecting box is rotatably connected with the inner side surface of the first baffle shell, the other end of the reciprocating screw rod is rotatably connected with the inner side surface of the second baffle shell, the two reciprocating screw rods are fixedly sleeved with a belt pulley, and the two belt pulleys are connected through belt transmission;
the inner side surface of the power box is rotationally connected with a round rod rotationally connected with one end of the baffle shell, the round rod and the side surface of the connecting rod are fixedly sleeved with a first transmission gear, the top of the power box is provided with a fixed rod fixedly connected with the bottom surface of the supporting plate corresponding to the first transmission gear, the inner side surface of the fixed rod is connected with a limiting rod in a sliding manner, the bottom of the side surface of the limiting rod is rotationally connected with a second transmission gear corresponding to the first transmission gear through a shaft rod, the top surface of the limiting rod is fixedly connected with a second spring fixedly connected with the inner side surface of the fixed rod, one end of the round rod and one end of a reciprocating screw rod are fixedly sleeved with a second belt pulley, and two belt pulleys are in transmission connection through a belt, the supporting plate can drive the fixed rod and the limiting rod to move downwards, so that the second transmission gear is meshed with the first transmission gear, the connecting rod can drive the round rod to rotate through the first transmission gear and the second transmission gear, the round rod can drive the reciprocating screw rod to rotate through the second belt pulley, the two reciprocating screw rods can keep synchronous rotation through the belt pulley, and when the reciprocating screw rod rotates, the sliding block can drive the cleaning rod to reciprocate along the surface of the supporting plate through the rotating rod, so that the surface of the supporting plate is cleaned.
The method is further characterized in that: the connecting box medial surface rotates and is connected with rectangular pole, and rectangular pole is located the one end fixedly connected with connecting box medial surface rotation axis of connection of sliding block, the axis of rotation all fixedly cup joints belt pulley three with reciprocal lead screw side, and two belt pulley tee bend belt transmission are connected, the dwang side is located the inside fixed cover of connecting box and has connect bevel gear one, rectangular pole side sliding connection has bevel gear two with bevel gear one meshing transmission, connecting box medial surface sliding connection has the screens seat of being connected with the dwang rotation, rectangular pole passes the screens seat, and screens seat medial surface is embedded to have a plurality of balls with two contacts of bevel gear, can make bevel gear one keep meshing with two bevel gear through the screens seat, and bevel gear one can slide on rectangular pole, and reciprocal lead screw can drive axis of rotation and rectangular pole rotation through three belt pulleys, and rectangular pole can drive the dwang rotation through bevel gear one and two, thereby make the rectangular pole remove and rotate, be favorable to improving high clearance effect, and the removal of backup pad, rectangular pole remove and rotate and all drive through motor two, and easy operation, convenient to use.
The invention has the beneficial effects that:
1. through the filtering module of the pretreatment device, domestic cleaning wastewater can be injected into the box body, the baffle can block the wastewater, the wastewater can be firstly stored in the box body for a period of time, so that solid impurities in the wastewater can be precipitated at the bottom of the box body, then the baffle can be lowered, the wastewater can slowly flow out of the box body through the filter screen, the wastewater is prevented from directly scouring the filter screen, the solid impurities are not easy to block the filter screen, the wastewater is convenient to filter, in addition, when the wastewater is discharged, the wastewater can pass through the filter screen and then can pass through the top of the baffle to be discharged out of the box body, and because the floating block can float on the water surface, the floating block can pull the baffle through the pull wire, the baffle can slowly descend along with the water surface of the wastewater through the floating block, so that the wastewater is slowly discharged, when the wastewater is prevented from being discharged, the solid impurities at the bottom of the box body are greatly disturbed, and the impurities are stuck on the filter screen;
2. the side face of the limiting rod is rotatably connected with a second transmission gear, the second motor drives the lifting screw rod to rotate, the supporting plate is lowered, the first transmission gear can be meshed with the second transmission gear, the first screw rod can be rotated, the cleaning rod can move along the top face of the supporting plate, solid impurities on the supporting plate can be cleaned, and when the cleaning rod moves, the rectangular rod can drive the cleaning rod to rotate through the first bevel gear and the second bevel gear, the cleaning effect can be improved, the supporting plate can move, the cleaning rod can move and rotate and can only be driven through the second motor, only one power source needs to be arranged, the operation is simple, and the use is convenient.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic flow chart of a decentralized intelligent domestic sewage treatment method in rural areas according to the present invention;
FIG. 2 is a schematic view of the pretreatment apparatus of the present invention;
FIG. 3 is a schematic view of a filter module according to the present invention;
fig. 4 is a schematic view of a fixing frame structure in the present invention;
FIG. 5 is a schematic view of the support mechanism of the present invention;
FIG. 6 is a schematic view of an arc-shaped plate structure according to the present invention;
FIG. 7 is a schematic view of the interior of the stationary housing of the present invention in elevation;
FIG. 8 is a front view of the inside of the stationary tube according to the present invention;
FIG. 9 is a schematic diagram of a cleaning module according to the present invention;
FIG. 10 is a schematic view of the internal structure of the power cartridge of the present invention;
FIG. 11 is a schematic view of the interior of the loop bar of the present invention in elevation;
FIG. 12 is a schematic view of the interior of the junction box of the present invention from above;
FIG. 13 is a schematic view of the locking seat of the present invention;
FIG. 14 is a schematic view of an interior elevation of the shield of the present invention.
In the figure: 100. a filtration module; 110. a box body; 111. a liquid inlet pipe; 120. a support plate; 130. fixing the tube; 131. floating blocks; 140. a fixing frame; 141. a baffle plate; 142. a fixed block; 143. a U-shaped frame; 144. a stopper; 145. a roller seat; 150. a support mechanism; 151. a stationary case; 152. a U-shaped plate; 153. a drive cartridge; 1531. a first motor; 154. a transmission belt; 155. a transmission rod; 156. a support block; 157. rotating the block; 158. an arc-shaped plate; 160. a pull wire; 200. a cleaning module; 210. a support housing; 220. cleaning the rod; 221. rotating the rod; 222. a first bevel gear; 230. a connection box; 231. a reciprocating screw rod; 232. a slider; 233. a rotating shaft; 234. a rectangular rod; 235. a clamping seat; 236. a second bevel gear; 240. a power cartridge; 241. a first blocking shell; 242. a second motor; 243. a first transmission gear; 244. a connecting rod; 245. a round bar; 250. a second blocking shell; 260. a loop bar; 261. a pressing plate; 262. a lifting rod; 263. a lifting screw rod; 264. a first spring; 270. fixing the rod; 271. a second transmission gear; 272. a second spring; 273. a limiting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-14, a decentralized intelligent domestic sewage treatment method in rural areas comprises the steps of pre-filtering, solid decomposition, wastewater decomposition, secondary filtering and sewage disposal, and the specific steps are as follows;
(1) Pretreatment: the domestic cleaning wastewater is subjected to preliminary filtration through a pretreatment device, and liquid and solid impurities in the domestic cleaning wastewater are separated;
(2) And (3) solid decomposition: decomposing organic matters of the domestic liquid dung and the solid impurities through microorganisms, and filtering the domestic wastewater and the solid impurities through a grid plate;
(3) Decomposing wastewater: decomposing the wastewater filtered in the step (2) by microorganisms to reduce the content of nitrogen and phosphorus in the wastewater;
(4) Secondary filtration: the wastewater after the filtering and decomposing in the steps (1) and (3) passes through a ceramsite filter material and the like for two times;
(5) And (3) blowdown: and discharging the wastewater subjected to secondary filtration into a sewage pipeline.
And (4) conveying the sludge generated by filtering in the step (3) into a sludge bin for collection and storage, and performing barrel unified treatment on the sludge in the sludge bin at the later stage.
The utility model provides a pretreatment device, including filtering module 100, filtering module 100 fixedly connected with clearance module 200, filtering module 100 includes box 110, box 110 top surface intercommunication has feed liquor pipe 111, box 110 side fixedly connected with fixed frame 140, the fixed frame 140 medial surface is located the fixedly connected with filter screen of box 110 one side, fixed frame 140 medial surface bottom sliding connection has the backup pad 120 with clearance module 200 fixed connection, one side sliding connection that fixed frame 140 medial surface deviates from box 110 has baffle 141, baffle 141 side top fixedly connected with U type frame 143, the equal fixedly connected with fixed block 142 in two sides of U type frame 143, box 110 side fixedly connected with the supporting mechanism 150 of U type frame 143 contact, and supporting mechanism 150 and fixed block 142 contact, fixed frame 140 side corresponds two fixed block 144 of two fixed block 142 fixedly connected with, can be with domestic cleaning waste water through feed liquor pipe 111 injection box 110 in, the baffle 141 can block waste water, so the solid impurity in the waste water can precipitate to the box 110 bottom, after the waste water holds fully, baffle 141 can descend baffle 150, waste water can pass through baffle 141 and slowly flow out the filter screen 110 through the top, avoid being difficult to be difficult to wash solid impurity of waste water, the filter screen is convenient for filtering.
The supporting mechanism 150 includes two fixed cases 151, the side of the fixed case 151 is fixedly connected with the side of the box 110, the opposite surfaces of the two fixed cases 151 are contacted with the side of the U-shaped frame 143, the inner side of the fixed case 151 is slidably connected with the adjacent fixed block 142, the top and the bottom of the inner side of the fixed case 151 are rotatably connected with the rotating block 157, the side of the two rotating blocks 157 is connected with the transmission belt 154 in a transmission manner, the top of one side of the transmission belt 154 is fixedly connected with the supporting block 156 and the bottom of the other side of the transmission belt 154, the top of the supporting block 156 at the top of one side of the transmission belt 154 is contacted with the bottom of the adjacent fixed block 142, the bottom of the opposite surface of the two fixed cases 151 is rotatably connected with the transmission rod 155, the two ends of the transmission rod 155 are fixedly connected with the side of the adjacent rotating block 157, the top of one fixed case 151 is fixedly connected with the driving case 153, the inner side of the driving case 153 is fixedly connected with the motor 1531, the output end of the motor 1531 is rotatably connected with the adjacent rotating block 157, the two rotating blocks 157 in the same fixed case 151 can synchronously rotate through the transmission belt 154, and the supporting block 157 can be separated from the supporting block 156 by the supporting block 155. Two casing 151 opposite faces deviate from one side fixedly connected with U template 152 of box 110, and U template 152 side bottom has seted up the water drainage tank, and U template 152 medial surface corresponds water drainage tank fixedly connected with and the arc template 158 of baffle 141 bottom contact, and waste water can fall on the arc template 158 after U type frame 143, then passes the water drainage tank and discharges, and U template 152 and arc template 158 can block waste water, avoids waste water to splash.
The inner side surface of the box body 110 is fixedly connected with a fixed pipe 130 which is contacted with the top surface of the supporting plate 120, the side surface of the fixed pipe 130 is slidably connected with a floating block 131, a stay wire 160 is arranged inside the fixed pipe 130, one end of the stay wire 160 penetrates out from the bottom of the side surface of the fixed pipe 130 and is fixedly connected with the bottom surface of the floating block 131, the other end of the stay wire 160 penetrates out from the top of the fixed pipe 130, a roller seat 145 is fixedly connected with the top surface of the fixed frame 140, the other end of the stay wire 160 bypasses the top of the roller seat 145 and passes through the top of the fixed frame 140, and the other end of the stay wire 160 is fixedly connected with the top surface of the baffle 141, when waste water is discharged, the floating block 131 can float on the water surface, so that after the baffle 141 moves downwards for a certain distance, the floating block 131 can pull the baffle 141 through the stay wire 160, the baffle 141 can slowly descend along with the waste water surface through the floating block 131, thereby slowly discharging the waste water, when the waste water is discharged, large disturbance on solid impurities at the bottom of the box body 110 is caused, and the impurities are stuck on the filter net.
The cleaning module 200 includes a supporting shell 210, a top side of the supporting shell 210 is fixedly connected with a bottom of a side of the box 110, a bottom inside of the supporting shell 210 is fixedly connected with a power box 240, a bottom inside of the power box 240 is fixedly connected with a second motor 242, an output end of the second motor 242 is in transmission connection with a connecting rod 244 rotationally connected with an inside of the power box 240, a top side of the inside of the power box 240 is fixedly connected with a loop bar 260, an inside of the loop bar 260 is rotationally connected with a lifting screw 263, an inside of the loop bar 260 is slidably connected with a lifting rod 263 rotationally connected with the lifting screw 263, a top end of the lifting rod 262 is fixedly connected with a bottom of the supporting plate 120, an inside of the loop bar 260 is slidably connected with a squeezing plate 261 rotationally connected with the lifting screw 263, a bottom of the squeezing plate 261 is fixedly connected with a first spring 264 fixedly connected with the inside of the loop bar 260, a side of the connecting rod 244 and a bottom end of the lifting screw 263 are fixedly connected with a third bevel gear, two bevel gears are in meshing transmission, the second motor 242 can drive the connecting rod 244 to rotate the connecting rod 244, the lifting rod 244 can drive the lifting rod 263 to rotate, thereby making the lifting rod move downwards and making the lifting screw 262 and the lifting screw 263 move downwards, after the bottom of the lifting screw rod is contacted with the lifting screw 262 on the lifting screw 263, the lifting screw 262 and the lifting screw 263, so that the lifting screw 262 and the lifting screw 262 can move downwards, the lifting rod 263, the lifting screw rod can be kept in a reverse direction, and the lifting screw 263, so that the lifting screw rod can move downwards, the lifting screw rod 263, and the lifting screw rod 263 can move downwards, and the lifting screw rod 263.
The two inner side surfaces of the support shell 210 are fixedly connected with the connecting boxes 230, the side surface of the power box 240 is fixedly connected with a first blocking shell 241 fixedly connected with the side surface of one connecting box 230, the side surface of the two connecting boxes 230, which is far away from the first blocking shell 241, is fixedly connected with a second blocking shell 250, the opposite surface of the two connecting boxes 230 is provided with a cleaning rod 220, the side surface of the cleaning rod 220 is fixedly connected with a plurality of cleaning hairs, two ends of the cleaning rod 220 are fixedly connected with rotating rods 221 which are in contact with the inner side surface of the adjacent connecting box 230, the inner side surface of the connecting box 230 is slidably connected with sliding blocks 232 which are rotatably connected with the adjacent rotating rods 221, the inner side surface of the connecting box 230 is rotatably connected with reciprocating screw rods 231 which are in contact with the sliding blocks 232, the inner parts of the sliding blocks 232 are rotatably connected with guide pieces which are in contact with spiral tracks on the reciprocating screw rods 231, one end of the reciprocating screw rods 231 in one connecting box 230 is rotatably connected with the inner side surface of the first blocking shell 241, the other end of the reciprocating screw rods 231 is rotatably connected with the inner side surface of the second blocking shell 250, the side surfaces of the two reciprocating screw rods 231 are fixedly connected with a first belt pulley in a sleeved mode, and the two pulley one pulley is connected with the side surfaces of the two pulley in a belt transmission mode;
the inner side surface of the power box 240 is rotatably connected with a round rod 245 which is rotatably connected with a first blocking shell 241, the round rod 245 and the side surface of a connecting rod 244 are fixedly sleeved with a first transmission gear 243, the top of the power box 240 is provided with a fixed rod 270 which is fixedly connected with the bottom surface of the supporting plate 120 and corresponds to the first transmission gear 243, the inner side surface of the fixed rod 270 is slidably connected with a limiting rod 273, the bottom of the side surface of the limiting rod 273 is rotatably connected with a second transmission gear 271 through a shaft rod, the top surface of the limiting rod 273 is fixedly connected with a second spring 272 which is fixedly connected with the inner side surface of the fixed rod 270, one end of the round rod 245 and one end of a reciprocating screw rod 231 are fixedly sleeved with a second belt pulley, the two belt pulleys are in transmission connection, the supporting plate 120 can drive the fixed rod 270 and the limiting rod 273 to move downwards, the second transmission gear 271 is meshed with the first transmission gears 243, the round rod 245 can be driven by the first transmission gear 243 and the second transmission gear 271 to rotate, the round rod 245 can drive the round rod 245 by the round rod 245 through the second belt pulley, the round rod 231 to rotate, the round rod can be driven by the second belt pulley 231, the round rod 231, the two reciprocating screw rod 231 can be kept to synchronously rotated, and rotate, and the sliding block 231 can be driven by the rotating rod 232 to move along the sliding block 221 when the reciprocating screw 231, and the reciprocating screw 231 can be driven by the rotating, and the rotating rod 231, and the rotating, and the sliding block 221, and the reciprocating rod 231 can be driven by the rotating rod 221, so as to clean the sliding block 221, and clean the surface of the supporting plate 120, and the surface of the supporting plate 120.
The inner side surface of the connecting box 230 is rotatably connected with a rectangular rod 234, one end of the rectangular rod 234, which is positioned at the sliding block 232, is fixedly connected with a rotating shaft 233, which is rotatably connected with the inner side surface of the connecting box 230, the rotating shaft 233 and the side surface of the reciprocating screw rod 231 are fixedly sleeved with a third belt pulley, the two third belt pulleys are in transmission connection through a belt, the side surface of the rotating rod 221 is fixedly sleeved with a first bevel gear 222, the side surface of the rectangular rod 234 is slidably connected with a second bevel gear 236, which is in transmission connection with the first bevel gear 222, the inner side surface of the connecting box 230 is slidably connected with a clamping seat 235, which is rotatably connected with the rotating rod 221, the rectangular rod 234 passes through the clamping seat 235, and a plurality of round balls which are in contact with the second bevel gear 236 are embedded in the inner side surface of the clamping seat 235, so that the first bevel gear 222 and the second bevel gear 236 can be kept in engagement, the first bevel gear 222 and the second bevel gear 236 can slide on the rectangular rod 234, the reciprocating screw rod 231 can drive the rotating shaft 233 and the rectangular rod 234 to rotate through the first bevel gear 222 and the second bevel rod 236, thereby enabling the cleaning rod 220 to move and rotate, which is beneficial to improve the cleaning effect, and the cleaning support plate 120 and the cleaning rod is easy to be operated by a simple operation of the motor 242.
The working principle is as follows: when the device is used, cleaning wastewater is injected into the box body 110 through the liquid inlet pipe 111, after the cleaning wastewater is injected into the box body 110, the floating block 131 floats on the surface of the wastewater, so that the floating block 131 moves upwards along with the surface of the wastewater, after more wastewater is injected, the floating block 131 moves to the top of the box body 110, part of the stay wires 160 in the fixed pipe 130 can be pulled out by the floating block 131, after the wastewater is kept still for a period of time, the first motor 1531 can be started, the first motor 1531 can drive the rotating block 157 at the top to rotate, two rotating blocks 157 in the same fixed shell 151 can keep synchronous rotation through the transmission belt 154, and one rotating block 157 at the bottom can drive the other rotating block 157 at the bottom to rotate through the transmission rod 155, so that the rotating blocks 157 in the two fixed shells 151 can synchronously rotate, the rotating block 157 can drive the supporting block 156 at the top to rotate upwards through the driving belt 154, after the supporting block 156 rotates upwards and is separated from the supporting block 156, the motor I1531 is stopped, at this time, the baffle plate 141 can move downwards for a certain distance, so that the height of the top of the baffle plate 141 is lower than that of the floating block 131, even if the height of the top of the baffle plate 141 is lower than the surface of the wastewater, the wastewater can be discharged out of the tank body 110 through the top of the baffle plate 141 after passing through a filter screen, the wastewater can fall onto the arc-shaped plate 158 through the U-shaped frame 143 and then be discharged through a drainage groove, meanwhile, after the baffle plate 141 moves downwards, the pull wire 160 can be tightened by the baffle plate 141, so that the floating block 131 can pull the baffle plate 141 through the pull wire 160, and when the floating block 131 descends along with the wastewater surface, the baffle plate 141 can slowly descend along with the floating block 131 through the pull wire 160;
after the top of the baffle 141 moves downwards to the position of the support plate 120, the bottom surface of the fixed block 142 can contact with the top of the stopper 144, so that the stopper 144 supports the support plate 120 through the fixed block 142, at this time, wastewater at the bottom of the tank body 110 can pass through the filter screen to be discharged, after all the wastewater is discharged, the first motor 1531 can be started, the first motor 1531 can continuously drive the transmission belt 154 to rotate through the rotating block 157, the transmission belt 154 rotates, the supporting block 156 at the bottom can rotate to the position of the fixed block 142, the top surface of the supporting block 156 at the bottom can contact with the bottom surface of the fixed block 142, at this time, the transmission belt 154 can drive the supporting block 156 to move upwards, so that the fixed block 142 is moved upwards through the supporting block 156, the baffle 141 is driven to move upwards, after the baffle 141 is moved to the original position, the filter screen can be blocked again by the baffle 141, and at this time, wastewater can be continuously injected into the tank body 110 to be filtered next time;
after a certain amount of solid impurities are accumulated in the box body 110, all the wastewater in the box body 110 is discharged, then the second motor 242 can be started, the second motor 242 can drive the connecting rod 244 to rotate, the connecting rod 244 can drive the lifting screw rod 263 to rotate through the third bevel gear, so that the lifting rod 262 drives the support plate 120 to move downwards, the support plate 120 can drive the fixed rod 270, the second transmission gear 271 and the limiting rod 273 to move downwards, so that the bottom of the fixed rod 270 passes through the top of the power box 240 and moves into the power box 240, after the top surface of the support plate 120 moves to the bottom of the cleaning rod 220, the bottom of the lifting screw rod 263 can be in contact with the extrusion plate 261, the threads on the lifting screw rod 263 can be separated from the lifting rod 262, so that when the lifting screw rod 263 continues to rotate, the lifting rod 262 and the support plate 120 cannot continue to move downwards, meanwhile, the second transmission gear 271 is meshed with the first transmission gear 243, so that the connecting rod 244 can drive the rotating rod 245 to rotate through the first transmission gear 243 and the second transmission gear 245, the round rod 245 can drive the reciprocating screw rod 231 to rotate through the first pulley 231, so that the reciprocating screw rod 231 can drive the reciprocating screw rod 231 to rotate along the reciprocating torque guide rod 234, so that the reciprocating screw rod 231 on the rotating shaft 231 and the reciprocating shaft 220 can drive the reciprocating torque guide rod 220 to move along the reciprocating torque guide rod 233, and the reciprocating torque guide rod 220, so that the reciprocating screw rod 221 on the reciprocating screw rod 220, the reciprocating screw rod 221 can drive the reciprocating torque guide rod 220, and the reciprocating torque guide rod 220;
after the cleaning rod 220 moves to the original position, the connecting rod 244 is rotated reversely by the second motor 242, so that the lifting screw rod 263 rotates reversely, the screw thread on the lifting screw rod 263 is kept in contact with the internal screw thread of the lifting rod 262 under the action of the first spring 264, so that the lifting screw rod 263 and the lifting rod 262 can be screwed again when the lifting screw rod 263 rotates reversely, the lifting rod 262 can drive the supporting plate 120 to move upwards to the original position, the supporting plate 120 can drive the second transmission gear 271 to move upwards, the first transmission gear 243 is separated from the second transmission gear 271, the cleaning rod 220 stops moving and rotating, and then the wastewater filtering can be continued.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (10)
1. A rural distributed intelligent domestic sewage treatment method is characterized by comprising the treatment steps of pre-filtration, solid decomposition, wastewater decomposition, secondary filtration and sewage discharge, and the method comprises the following specific steps;
(1) Pretreatment: the domestic cleaning wastewater is subjected to preliminary filtration through a pretreatment device, and liquid and solid impurities in the domestic cleaning wastewater are separated;
(2) Solid decomposition: decomposing organic matters of the domestic liquid dung and the solid impurities by microorganisms, and filtering the domestic wastewater and the solid impurities by a grid plate;
(3) Decomposing wastewater: decomposing the wastewater filtered in the step (2) by microorganisms to reduce the content of nitrogen and phosphorus in the wastewater;
(4) Secondary filtration: the wastewater after the filtering and decomposing in the steps (1) and (3) passes through a ceramsite filter material and the like for two times;
(5) And (3) blowdown: and discharging the wastewater after the secondary filtration into a sewage pipeline.
2. The rural distributed intelligent domestic sewage treatment method according to claim 1, wherein the sludge produced by filtering in the step (3) is sent to a sludge bin for collection and storage, and the sludge in the sludge bin is subjected to barrel unified treatment in a later period.
3. The pretreatment device according to claim 1 or 2, comprising a filtering module (100), wherein the filtering module (100) is fixedly connected with a cleaning module (200), the filtering module (100) comprises a box body (110), the top surface of the box body (110) is communicated with a liquid inlet pipe (111), a fixing frame (140) is fixedly connected to the side surface of the box body (110), a fixedly connected filter screen is arranged on one side of the box body (110) on the inner side surface of the fixing frame (140), a supporting plate (120) fixedly connected with the cleaning module (200) is slidably connected to the bottom of the inner side surface of the fixing frame (140), a baffle (141) is slidably connected to one side of the inner side surface of the fixing frame (140) deviating from the box body (110), the U-shaped frame (143) is fixedly connected to the top of the side surface of the baffle (141), a fixing block (142) is fixedly connected to two side surfaces of the U-shaped frame (143), a supporting mechanism (150) is in contact with the U-shaped frame (143), and the supporting mechanism (150) is in contact with the two stoppers (144) corresponding to the side surface of the fixing frame (140).
4. The pretreatment device according to claim 3, wherein the supporting mechanism (150) comprises two fixed shells (151), the side surfaces of the fixed shells (151) are fixedly connected with the side surfaces of the box body (110), opposite surfaces of the two fixed shells (151) are in contact with the side surfaces of the U-shaped frame (143), the inner side surfaces of the fixed shells (151) are in sliding connection with adjacent fixed blocks (142), the top and the bottom of the inner side surface of each fixed shell (151) are rotatably connected with rotating blocks (157), the side surfaces of the two rotating blocks (157) are rotatably connected with transmission belts (154), the top and the bottom of one side surface of each transmission belt (154) are fixedly connected with supporting blocks (156), the top surface of the supporting block (156) at the top of each transmission belt (154) is in contact with the bottom surface of the adjacent fixed block (142), the bottom of the opposite surfaces of the two fixed shells (151) are rotatably connected with transmission rods (155), two ends of each transmission rod (155) are fixedly connected with the side surfaces of the adjacent rotating blocks (157), the top of one fixed shell (151) away from the transmission rod (155) is fixedly connected with a driving box (153), the inner side surface of the driving box (153) is fixedly connected with a motor (1531), and an output end of the adjacent rotating block (157) is connected with a motor (157).
5. The pretreatment device according to claim 4, wherein a U-shaped plate (152) is fixedly connected to one side of each of the opposite surfaces of the two fixed shells (151) facing away from the tank body (110), a drainage groove is formed in the bottom of the side surface of each U-shaped plate (152), and an arc-shaped plate (158) in contact with the bottom of the baffle plate (141) is fixedly connected to the inner side surface of each U-shaped plate (152) corresponding to the drainage groove.
6. The pretreatment device according to claim 3, wherein a fixed pipe (130) contacting with the top surface of the support plate (120) is fixedly connected to the inner side surface of the box body (110), a floating block (131) is slidably connected to the side surface of the fixed pipe (130), a pulling wire (160) is arranged inside the fixed pipe (130), one end of the pulling wire (160) penetrates through the bottom of the side surface of the fixed pipe (130) and is fixedly connected with the bottom surface of the floating block (131), the other end of the pulling wire (160) penetrates through the top of the fixed pipe (130), a roller seat (145) is fixedly connected to the top surface of the fixed frame (140), the other end of the pulling wire (160) bypasses the top of the roller seat (145) and penetrates through the top of the fixed frame (140), and the other end of the pulling wire (160) is fixedly connected with the top surface of the baffle plate (141).
7. The pretreatment device according to claim 3, wherein the cleaning module (200) comprises a supporting shell (210), the top side of the supporting shell (210) is fixedly connected with the bottom of the side of the box body (110), the bottom of the supporting shell (210) is fixedly connected with a power box (240), the bottom of the power box (240) is fixedly connected with a second motor (242), the output end of the second motor (242) is in transmission connection with a connecting rod (244) in rotation connection with the inner side of the power box (240), the top of the inner side of the power box (240) is fixedly connected with a loop bar (260), the inner side of the loop bar (260) is in rotation connection with a lifting screw rod (263), the inner side of the loop bar (260) is in sliding connection with a lifting rod (262) in rotation connection with the lifting screw rod (263), the top end of the lifting rod (262) is fixedly connected with the bottom of the supporting plate (120), the inner side of the loop bar (260) is in sliding connection with a squeezing plate (261) in rotation connection with a spring first spring (264) fixedly connected with the inner side of the loop bar (260), the bottom of the squeezing plate (261) is in sleeve connection with a first spring (244), and the three bevel gears (263) are meshed with three bevel gears.
8. The pretreatment device according to claim 7, wherein the support shell (210) has a connecting box (230) fixedly connected to both inner sides, the power box (240) has a first blocking shell (241) fixedly connected to one connecting box (230) side, the two connecting boxes (230) have a second blocking shell (250) fixedly connected to the side facing away from the first blocking shell (241), the two connecting boxes (230) have cleaning rods (220) arranged on opposite sides, the cleaning rods (220) have cleaning bristles fixedly connected to the side, the cleaning rods (220) have rotating rods (221) fixedly connected to both ends of the cleaning rods (220) and contacting the inner sides of the adjacent connecting boxes (230), the connecting box (230) has a sliding block (232) slidably connected to the inner side of the adjacent rotating rod (221), the connecting box (230) has a reciprocating lead screw (231) rotatably connected to the sliding block (232), the sliding block (232) has a guide plate rotatably connected to the inner side of the sliding block (232), one end of the connecting box (230) is rotatably connected to the inner side of the first reciprocating lead screw (231), and the other end of the reciprocating lead screw (231) is rotatably connected to the inner side of the connecting box (250), the two first belt pulleys are in transmission connection through a belt;
the inner side face of the power box (240) is rotatably connected with a round rod (245) which is rotatably connected with a first baffle shell (241), the round rod (245) and the side face of a connecting rod (244) are fixedly sleeved with a first transmission gear (243), the top of the power box (240) is provided with a fixing rod (270) which is fixedly connected with the bottom face of a support plate (120) corresponding to the first transmission gear (243), the inner side face of the fixing rod (270) is slidably connected with a limiting rod (273), the bottom of the side face of the limiting rod (273) corresponds to the first transmission gear (243) and is rotatably connected with a second transmission gear (271) through a shaft rod, the top face of the limiting rod (273) is fixedly connected with a second spring (272) which is fixedly connected with the inner side face of the fixing rod (270), one end of the round rod (245) and one end of a reciprocating screw rod (231) are fixedly sleeved with a second belt wheel, and the two belt wheels are in a transmission connection mode.
9. The pretreatment device according to claim 8, wherein a rectangular rod (234) is rotatably connected to the inner side surface of the connection box (230), the rectangular rod (234) is located at one end of the sliding block (232), a rotating shaft (233) rotatably connected to the inner side surface of the connection box (230) is fixedly connected to the one end of the sliding block (232), a third belt pulley is fixedly sleeved on each of the rotating shaft (233) and the reciprocating screw rod (231), the two third belt pulleys are in transmission connection through a belt, a first bevel gear (222) is fixedly sleeved on the side surface of the rotating rod (221) and located inside the connection box (230), a second bevel gear (236) in meshing transmission with the first bevel gear (222) is slidably connected to the side surface of the rectangular rod (234), a clamping seat (235) rotatably connected to the rotating rod (221) is slidably connected to the inner side surface of the connection box (230), and the rectangular rod (234) passes through the clamping seat (235).
10. The pretreatment device according to claim 9, wherein balls in contact with the bevel gear II (236) are embedded in the inner side of the seat (235).
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| CN202210939056.8A CN115432883B (en) | 2022-08-05 | 2022-08-05 | Rural distributed intelligent domestic sewage treatment method and pretreatment device |
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| CN112044171A (en) * | 2020-09-07 | 2020-12-08 | 吕玲 | Graded filtering sewage treatment device |
| US10967314B2 (en) * | 2019-08-26 | 2021-04-06 | Zhijun Wang | Water floating object treatment device for sewage treatment |
| CN113277644A (en) * | 2021-05-29 | 2021-08-20 | 孙萍 | Domestic sewage treatment equipment and working method thereof |
| CN114588684A (en) * | 2022-03-11 | 2022-06-07 | 宏伟建设工程股份有限公司 | Municipal works are with sanitary wastewater treatment device |
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- 2022-08-05 CN CN202210939056.8A patent/CN115432883B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10967314B2 (en) * | 2019-08-26 | 2021-04-06 | Zhijun Wang | Water floating object treatment device for sewage treatment |
| CN112044171A (en) * | 2020-09-07 | 2020-12-08 | 吕玲 | Graded filtering sewage treatment device |
| CN113277644A (en) * | 2021-05-29 | 2021-08-20 | 孙萍 | Domestic sewage treatment equipment and working method thereof |
| CN114588684A (en) * | 2022-03-11 | 2022-06-07 | 宏伟建设工程股份有限公司 | Municipal works are with sanitary wastewater treatment device |
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